Safety attachment for type-slug-casting machines



NW. 2a, 1923. 1,475,007

C. FADUM SAFETY ATTACHMENT FOR TYPE SLUG CASTING MACHINES Filed Dec. 22, 1919 Patented Nov. 20, 1923.

1,475,001 PATENT ()FFICE.

CHRISTIAN FADUM; 0F YORK, N. Y.

SAFETY ATTACHMENT FOR TYPE-SLUG-CASTING MACHINES.

Application filed December 22', 1919. Serial 110.6%,486.

To all whom it may concern:

Be it known that L'cflRlSTIAN FADUM, a citizen of the United States, and a resident of the city of New York, borough of Brook lyn, county of Kings, and State of New ork, have invented certain new and useful Improvements in Safety Attachments for Type-Slug-Castini; Machines, of which the following is a ful clear, and exact description.

Among the principal objects which the present invention hasin view are: to avoid damage to machines of the character mentioned when ejecting the slug therefrom: to prevent damage to the cast slug and liner therefor which is often occasioned by the use of ejectors of over size; to eliminate loss of time in the operation of the slug casting machine, and of the mechanics attendant thereon; and to provide means for accomplishin the above stated purposes automatical y; to integrate the attachment with the operating and controlling mechanism of the type slug casting machine; and to simplify the construction of the attachment.

Drawings. Figure 1 is a schematic vie-w showing in side elevation, the mold disk and supporting slide therefor in conjunction with the co-opcrating devices for suspending the operation of the driving mechanism of the machine imder certain ascertained conditions, and

also the attachment herein disclosed in operative relation to the said disk mold slide and stopping mechanism, as well .as means for rearranging or setting the operative condition of the attachment.

Figure 2 is a perspective view of a type slug mold having therein, a mold liner, constructed and arranged in accordance with the present invention.

Figure 3 is a side view of a mold liner of the character mentioned.

Description.

in form, or made up of a series of segments,

are used to eject the slug from the mold. It is necessary in order to avold injury to the liner that the width of the ejecting blade I the lever 12, the pointer head 13 thereo working over the calibrated quadrant 14 to indicate the selected blade. The liners are placed in the molds, manually.

It is obvious that if the ejector blade be too large for the mold, the liner will be struck by the blade and be destroyed. This may result from inadvertence or carelessness on the part of the operator moving the lever 12 after the liners have been set, or moving the said lever to select the blade in correspondence with what the operator remembers the liners to be.

It is to avoid these accidents that 1 provide each liner 11 with an extension 15. The extension 15, as seenbest in Fig. 1 of the drawings, protrudes beyond the mold 9. The length of the extension 15 varies with the size of the ejector blades with which the casting machine is equipped.

When the operator moves the lever 12 about its pivot the shifter fork 18 and the shifter fork bar 17 are set to regulate the blade to be used in the future operation of the machine While so set. The size of the blade is indicated on the calibrations of the scale 1 1.

When using the safety attachment herein disclosed, a cam arm 19 is rigidly connected to the fork arm 18, to be moved therewith. The cam 20 on the arm 19 is disposed in the path of the adjustable riding screw 21 in the short end 22 of the rocking lever 23. The short end 22 and the riding screw 21 thereof are normally held in engagement with the cam 20 by a coil spring 24. The forward or free end of the lever 23 is slidably engaged with the free end of a trip rod 25, which normally does not move with the disk 8.

The trip rod 25 has a hook end 26 for engagement by the extension 15 of the liner 11, if the ejector blade of the machine is too large for the slug which has been cast, and the mold therefor, which has been formed in part by said liner. l-Vhenever the engagement referred to occurs, the trip rod 25 is moved in the direct-ion indicated by the arrow 'A, associated with said rod to rock the lever 27. The lever 27 is p-ivotally mounted on the stationary frame of the casting ma chine by means of a pivot shaft 28. A pin 29 in an'arm 30 of the lever 27 rests in a nick 31 formed in the end 32, of the rod 25. The lower and free end of the lever 27 is pivotally connected by the screw bolt 33 with an interference bar 34. The free end of the bar 34 is provided with a toe 35 that extends through a loop 36 which supports the free end of the bar 34.

As is usual in the operation of type slug casting machines, the mold disk 8 and slide 37 reciprocate to dispose the mold disk and molds carried thereby successively in operative relation with the matrix set up by the matrix-formin mechanism, and subsequently for the e ection of the slug cast. Usually, the disks 8 are rotated a quarter of a revolution and three quarters of a revolution between the reciprocations, and while in the retracted position. Therefore, the mold 9 and its liner 11 with the extension 15 thereof are brought into juxtaposed relation to the end 26 of the tIlPl rod 25, prior to the operation of the ejector blade. If the-ejector blade corresponds with the liner 11 in the mold, the extension 15 of the liner will pass close to, but under the end of the finger 26. But should the ejector blade be too large for the mold formed by the liner, the end of the rod 25 will engage the extension 15 and be moved forward in correspondence with the disk 8, rocking the lever 27 and advance the-bar 34 and the toe 35 connected therewith into the path of the swinging member 7) of a conventional form of automatic stopping mechanism a.

Type slug casting machines of the charasterdisclosed have an automatic stop mechanism which arrests the operation of the machine in the event the transfer mechanism fails to act. This mechanism provides a rotating element or deflector a, the otlice of which is to divert a swingin member I) from the path of the toe 38 0% a rocking plate 39. i

The plate 39, lever 40 and bell-crank lever 41 with the yoke 42 for throwing the clutch operatively connecting the type slug casting machine with a motor, are well known parts of the machine, styled, the Intertype machine for which the present mechanism is particularly adapted. l'Vhen the operation of the type casting mechanism is normal, the swinging member 5 referred to passes the toe 38 close to the side thereof, without disturbing the operative relation between the plate 39, lever 41 and clutch operated by the yoke 42. When the mechanism is interfered with, however, the swinging member 72 is not deflected, and engages the toe 38 to rock the plate 39 on its pivot 43, with the effect that the levers/40 and 41 are rocked to throw the clutch by means of the yoke 42, and the type casting mechanism is arammo? disk 8 is advancing to the delivery position a for the cast slug, the liner in the mold and the slug are both saved from injury.

The mechanism herein described operates as f lows:

Prior to starting the matrix setting mechanism, the liners are placed in the molds to govern the length of the slugs to be cast, theextensions 15 of said liners protruding beyond the end of the mold. The lever 12 is operated so that the pointer member- 13 moves over the quadrant 14 to shift the rod 17 and fork arm 18 connected therewith. Thc selecting mechanism for the ejector blades is connected with the fork arm 18 and in correspondence with the set of the said fork arm by means of the lever 12, one or other of the e'ector blades is operatively connected with the arm 18 to eject the slug when in delivery position.

The present mechanism utilizes the arm 18 and shifting mechanism therefor by rigidly attaching to the arm 18, the arm 19 having the cam 20. The cam 20 is held permanently on the arm 18 so that when the disk 8 and said arm move forward, the lever 23 is carried forward, the standard 44 being permanently connected with said slide.

As the cam '20 is moved under the short end 22 of the lever 23, the long end of the lever connected with the rod 25 is rocked on the pivot 45. The cam 20 is shaped to function in correspondence with the operation of the ejector blade selecting mechanism, that is, the movement of the free end of the lever 23 produced by the cam 20 has correspondence with the ejector blade selected by the movement of the lever 12'. It is obvious that if this selectionof the ejector blade. does not correspond with the liner 11 in the mold 9, the end 26 of the rod 25 is depressed into the path of the extension 15 of said liner, with the result that the stopping mechanism a, b, of the casting machine is actuated to stop the said mechanism.

The lever 23 is operatively connected with the rod 25 by the pin 46 and the slot 47 formed in said rod. The pin and slot .connection permits the movement of the lever 23 without moving the rod 25. i

What I claim is:

1. Atype slug casting machine embodying a reciprocating mold disk, ejector selectaevaooa ing means for delivering the slugs from molds in said disk, and a sto ing mechanism for said machine; in com ination with an attachment as characterize-d comprising a series of liners for insertion in said molds, said liners having each an extension for projection b'eyond said molds, the lengths of said extension having correspondence with said selecting means; a connecting mechanism for said stopping mechanism embodying a draw bar the end whereof is normally disposed in the plane of movement of said liners and in spaced relation to the end of said extensions; and means ope-ratively connected with said disk, and a controlling mechanism for said ejector devices for depressing the end of said draw bar toward the ath of said extensions for engagement by the extensions which do not correspond with the said selecting means being employed.

2. A type slug casting machine embodying a reciprocating mold disk, ejector selectdraw bar; a manually operated mechanism ing means for delivering the slugs from molds in said disk, and a stopping mechanism for said machine; .in combination with an attachment as characterized comprising a series of liners for varying the length of available mold space, each liner having an extension forcorrespondence to the length of the body of said liners; a draw bar normally nonreciprocating, nected with the said stopping mechanism; a rocking lever operatively supported by the said d1sk for supporting the end of said draw bar; a manually operated mechanism for the selecting meansfor correspondence with the liners employed; and means operatively engaging said rocking lever for depressing the end of said draw bar to engage the extensions of all liners longer than the liner corresponding with the selecting means being used.

3. A type slug casting machine embodying a reciprocating mold disk, ejector selecting means for delivering the slugs from molds in said disk, and a sto ping mechanism for said machine; in combination with an attachment as characterized comprising a series of liners for varying the lengthof the available mold space, each liner having an extension for correspondence to the lengt of the body of said liners; a draw bar normally nonreciprocating, operatively connected with the said stopping mechanism; a rocking lever operatively supported by the said disk, for supporting the end of said for selecting the ejector devices for correspondence with the liners employed; and means operatively engaging said rocking lever for depressing the end of said draw bar to engage the extensions of all liners longer than the liners corresponding with the ejector devices being used, said means embodyoperatively coning a cam mounted on to move with the ejector selecting mechanism, the rise of said cam being adapted to move the end of saiddraw bar in a ratio corres onding with the variation in the ejector evices employed.

4. A type slug casting machine embodying a reciprocating mold disk, ejector selecting means for delivering the slugs from molds in said disk, a selective mechanism for determining the ejector means to be used, said selective mechanism having a yoke arm adjustably movable in juxtaposed relation to and in a parallel path with'said disk, an automatic stopping mechanism for said machine embodying a rocking plate and a swinging member having a path normally juxtaposed to said rocking plate for avoiding the same; of an attachment as characterized comprising a series of liners for insertion in said molds for limiting the available effective length of said molds in correspondence with said ejector means, an interference member arranged to engage said extensions when failing to correspond with'said ejector meansand said swinging member for looking said plate and actuating the stopping mechanism connected therewith.

5. A type slug casting machine embodying a reciprocating mold disk, ejector selecting means for delivering the slugs from molds in said disk, a selective mechanism for determining the ejector means to be used, said Y.

selective mechanism having a yoke arm adjustably movable in juxtaposed relation to and in a'parallel path with saiddisk, an automatic stopping mechanism for said machine embodying a rocking plate and a swinging member having a path normall juxtaposed, to said rocking plate for avoi ing the same; of an attachment as characterized comprising a series of liners for insertion in said moldsfor limiting the available effective length of said molds for correspondence with said ejector devices, an interference member arranged to engage said extensions when failing to correspond with said ejector means and said swinging memher for rocking said plate and actuating the stopping mechanism connected therewith, and means permanently connected with the selective means for said ejector for controlling the disposition of said interference member in correspondence with the selected juxtaposed to said rocking plate for avoidiug the same; of an attachment as characterizedlcomprising a series of liners for insertion in said moldsi'or limiting the available ,when failing to correspond with said ejector means and said swinging member for rocking said plate and actuating the Stopping mechanism connected therewith, and means permanently connected with the selective mechanism for said ejector means for con-- trolling the disposition of said interference member in correspondence with the selected ejector plate, said means embodying a cam permanently connected with for movement by said selective mechanism for elevating a member engaging the same in correspondence with the ejector means selected, and a support for said interference member permanently connected to move with said disk for engaging said cam to be rocked thereby, for disposing the end of the interference member in the path of the extensions of said liners. a

7. A type slug casting machine embodying a reciprocating mold disk, a stopping mechanism embodying a, clutch yoke and rocking plate actuating the same, moving means normally adapted for rocking said plate,said means moving in the path of said plate, means for diverting said plate from the path of said moving means; and an attachment as characterized comprising a ret ace? of the body of the liner for distinguishing between said liners, and an interference mechanism for engaging the extended ends of said liners, operatively connected with said rocking plate for movement of a portion thereof into the diverted path of said moving means when operatively engaged by the extended ends of said liners.

8. A type slug casting machine embodying a reciprocating rockin mold disk, a type mold operatively mounte thereon; a plurality of liners, each having distinctive extensions and ada ted for installation in service in 'said mo ds; means for regulating ejector blades used in connection with said molds for removing the casting slu therefrom, said means embodying a mova 1e arm having a variable end member; a reciprocating connecting rod operatively connected to the stopping mechanism of said casting machine, said rod having a hook for engaging said liners when disposed in the path thereof during the movement of said disk; and means operatively connecting the variable end of said arm and said rod for varying the elevation of the forked end of said ro in relation to said liners; whereby when the said ejector blades are selected, the movement of the hooked end of said rod is varied.

CHRISTIAN FAD. 

